import axios from 'axios'
import { Notification, MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import errorCode from '@/utils/errorCode'

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: process.env.VUE_APP_BASE_API,
  // 超时
  timeout: 60000
})
// request拦截器
service.interceptors.request.use(config => {
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  if (getToken() && !isToken) {
    config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
  }

  // 下载接口取消超时
  if (config.url && config.url.endsWith('export')) {
    config.timeout = 0
  }
  // get请求映射params参数
  if (config.method === 'get' && config.params) {
    let url = config.url + '?'
    for (const propName of Object.keys(config.params)) {
      const value = config.params[propName]
      var part = encodeURIComponent(propName) + '='
      if (value !== null && typeof (value) !== 'undefined') {
        if (typeof value === 'object') {
          for (const key of Object.keys(value)) {
            if (value[key] !== null && typeof (value[key]) !== 'undefined') {
              let params = propName + '[' + key + ']'
              let subPart = encodeURIComponent(params) + '='
              url += subPart + encodeURIComponent(value[key]) + '&'
            }
          }
        } else {
          url += part + encodeURIComponent(value) + '&'
        }
      }
    }
    url = url.slice(0, -1)
    config.params = {}
    config.url = url
  }
  return config
}, error => {
  console.log(error)
  Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use(res => {

  // 未设置状态码则默认成功状态
  const code = res.status || 200
  // 获取错误信息
  const errMsg = res.data ? res.data.message : null
  const msg = errMsg || errorCode[code] || errorCode['default']
  if (code === 401) {
    MessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
      confirmButtonText: '重新登录',
      cancelButtonText: '取消',
      type: 'warning'
    }).then(() => {
      store.dispatch('LogOut').then(() => {
        location.href = '/index'
      })
    }).catch(() => {})
    return Promise.reject(new Error('无效的会话，或者会话已过期，请重新登录。'))
  } else if (code === 500) {
    Message({
      message: msg,
      type: 'error'
    })
    return Promise.reject(new Error(msg))
  } else if (code !== 200) {

    Notification.error({
      title: msg
    })
    return Promise.reject(new Error(msg))
  } else {
    return res.data
  }
},
error => {
  console.log('Err ', error)
  let { message, response } = error
		let config = response.config;
		const code = response.status || 500
		// 获取错误信息
		const errMsg = response.data ? response.data.message : null
		const msg = errMsg || errorCode[code] || errorCode['default']

  if (message === 'Network Error') {
    message = '后端接口连接异常'
  } else if (message.includes('timeout')) {
    message = '系统接口请求超时'
  } else if (response.status) {
    let code = response.status
    let message = response.data.message
    if (code === 401) {
      MessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
        confirmButtonText: '重新登录',
        cancelButtonText: '取消',
        type: 'warning'
      }
      ).then(() => {
        store.dispatch('LogOut').then(() => {
          location.href = '/index'
        })
      }).catch(() => {})
      return Promise.reject(new Error('无效的会话，或者会话已过期，请重新登录。'))
    } else if (code === 500) {
		    if(!config.ignore){
			    Message({
				    message: message,
				    type: 'error'
			    })
		    }
      return Promise.reject(new Error(message))
    }
  } else if (message.includes('Request failed with status code')) {
    //message = '系统接口' + message.substr(message.length - 3) + '异常'
			 return Promise.reject(error)
  }
  Message({
    message: msg,
    type: 'error',
    duration: 5 * 1000
  })
  return Promise.reject(error)
})

export default service
